<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>壁纸</title>
    <style>
        @import url("css/style2.css");   /*引入外部 css 文件*/
    </style>
</head>

<body>
<!--包装-->
<div id="Wrap">
    <div class="main">
        <div class="A">
            <img src="img/1.jpg"/>
        </div>
        <div class="B">
            <div class="A-box">
                <img src="img/2.jpg"/>
            </div>
            <div class="B-box">
                <img src="img/3.jpg"/>
            </div>
        </div>
        <div class="C">
            <div class="A-box">
                <img src="img/4.jpg"/>
            </div>
            <div class="B-box">
                <img src="img/5.jpg"/>
            </div>
        </div>
    </div>
</div>
</body>

</html>